Lubricating apparatus.



No,"776,240. PATENTED NOV. 2 1904.

H. HAMELLE.

LUBRIGATING APPARATUS.

APPLICATION FILED 1120.31, 1903.

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- mfimw PATENTED NOV. 29, 1904.

H. HAMELLE.

LUBRIOATING APPARATUS.

APPLICATION FILE D DEO.31, 1903.

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.NO MODEL.

W/T/VESSES" %ruv UNTTnn STATES HENRY l-TAMELLE,

Patented November 29, 1904.

OF PARIS, FRA N )E.

LUBRICATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 776,240, dated November 29, 1904. Application filed December 31,1903. Serial No. 187,259., (No model.)

To all whom. it may concern:

Be it known that'l, H nNRY HAMELLE, a

citizen of the Republic of France, residing in Paris, France, have invented certain new and useful Improvements in Lubricating Apparatus, of which the following is a specification.

This invention relates to improvements .in lubricating apparatus.

According to my invention lemploy a'sin- -gle pipe between the oil-reservoir, containing the compression pump or pumps and the dis' tributer; but the compression apparatus and the distributor are each provided with a regulated pressure-valve to allow'oil to return to the reservoir if from any cause all the oil forced in by the pump is not distributed to the parts to be lubricated or should an accidental excess of pressure distributor. I

To enable the invention to be fully understood, 1 will describe the same by reference to the accon'lpanying drawings, in which- Figure l is a view of my improved apparatus, the reservoir containing the compression-purnps being shown in section and the distributer in part-sectional elevation. Figs. 2 and 3 are vertical sections taken at right angles to eachjother of a compression apparatus having, a single. compression-piston. Fig. 4: is a section drawn to a larger scale of the neck for connecting the pipe leading from the pump to thedistributer.

v The pumping of the oil contained in the oilreservoir A, of cast-iron, takes place through a pipe B, connected to the distributor C. The

, said pipe B receives the lubricating liquid by means of two pistons L) D, Fig. 1, or of a single piston, Figs. 2 and 3, the saidpistons or piston being; connected by links E to a ivoted lever F, to which a to-and-iro move ment is communicated through a lever, such asGr, connected to any suitable prime mover. The pump-body His provided, in connection with each piston l), with a suction-valve a, against'which bears a spring with a constant pressure. The liquid which is forced .in raises the back pressure-valve c, which is also provided with a spring (Z. \Vhen the pump 1s provided w1th two pistons, as in Fig.

be produced in the 1-, a single spring (Z may be interposed between the two valves 0.

ing from the oil-reservoir. from this aperture 2 or in communication with it is asma'll conduitf', closed by a valve on which presses a spring it. The tension of this spring may be regulated as desired by operating a screwed rod 1', which may be turned at its upper part outside the reservoir A by means of a screw driver which engages with the screw at f, a lock-nut serving to hold the regulating-rod 11 in the desired position. Above the valve 7 the conduitf communicates by with the oil-reservoir. By this construction should there be produced in the distributor, and consequently in the pipe B, an excess of pressure caused by the non-consumption by the 'parts to be lubr-icated of all the oilforced in by the pump such excess of pressure causes the valve 0 to rise by pressing the spring 71/, and the conduit f being thus opened gives free passage to the oil which the pistons D (or piston) continues to force in, so that the oil withdrawn from the reservoir immediately returns thereto.

At the end of the day the reservoir of the distributer C is naturally full, as the apparatus is continuously working. \Vhen on the following morning the machine is heated before starting on a journey and before any movement takes place in the working parts, heating of the distributor and expansion of .the oil takes place, which cause a sudden excess of pressure capable of effecting the rupture of. the distributer-reservoir. This defeet is remedied by the adjustable pressurevalve arranged in the neck or part connecti spring bears, the other endo'f the said spring On the other side of the valves 0 is the aperture c of the pipe B, lead- In an extension,

bearing against a screwed ring a. By ad justing the position of this screwed ring the tension of the spring t may be regulated, and consequently the pressure at which the oil contained in the distributer can flow back into the reservoir A. The tension of the spring t should naturally be greater than that of the spring h, which bears upon the valve r of the compressor, as the oil forced from the distributer to the pipe B should be able to pass beneath the valve g and reach the oil-reservoir through the passage 2.

The two passages n and r of the connecting piece or neck of the distributer-box communicate by a passage 4), so that the oil pumped from the compressor toward thedistributer arrives at :r, passes by h, under the valve, which it displaces by compressing. the spring j), and finally passes by ;2 into the distributer.

I claim 1. A lubricatingapparatus comprising an oil-reservoir, a pump connected thereto, a distributer connected to said pump, acheck-valve between said pump and distributer, and a safety-valve in close connection with said distributer adapted to operate when an excessive pressure occurs in said distributer..

2. A lubricating apparatus comprising an oil-reservoir, a pump connected thereto, a distributer separated from said reservoir and connected to said pump, a check-valve between said pump'a'nd distributor, and a safety-valve, adapted to open when an excessive pressure occurs in said distributer, both said valves being in close connection with said distributer.

3. Inalubricating apparatus, the combina-.

tion of a reservoir, a distributer, a connection between said reservoir and distributer, a pump for pumping oil to said distributer, a safetyvalve connected tosaid pump and adapted to permit oil to flow back to said reservoir when the pressure in said passage becomes excessive, and a safety-valve connected with said distributer and adapted to return oil to said reservoir when the pressure in said distributer becomes excessive.

4:. In a lubricating apparatus,a reservoir A, a distributer G, a connection B, a pump, a safety-valve in said pump adapted to return oil to the reservoir, a plug 1, acheck-valve in said plug, andasafety-valve in said plug, both communicating with the connection B.

In witness whereof I have hereunto signed my name, this 16th day of December, 1903, in

the presence of two subscribing witnesses. HENRY HAMELLE.

Witnesses:

Julius ARMENGAUI), J eune, HANSON C. Coxu. 

